Observation of shot-noise-induced asymmetry in the Coulomb blockaded Josephson junction

Details Observation of shot-noise-induced asymmetry in the Coulomb blockaded Josephson junction Observation of shot-noise-induced asymmetry in the Coulomb blockaded Josephson junction

2004-03-17

arxiv.org/abs/cond-mat/0403427v3

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 5 figures, RevTEX

Scientific paper

10.1103/PhysRevLett.93.197002

We have investigated the influence of shot noise on the IV-curves of a single mesoscopic Josephson junction. We observe a linear enhancement of zero-bias conductance of the Josephson junction with increasing shot noise power. Moreover, the IV-curves become increasingly asymmetric. Our analysis on the asymmetry shows that the Coulomb blockade of Cooper pairs is strongly influenced by the non-Gaussian character of the shot noise.

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